Staff Answer
Sep 24, 2026 - 08:43 PM
I can't confirm that the Micro P-711 board comes with a wiring diagram for the RM3863, and we don't sell replacement wiring harnesses for it. Since you don't have a photo of the old wiring, our tech support service can walk you through hooking it up. Since I can't confirm this 100% from here, please email us at info@rvfridgeguys.com or call 800-712-8822 with your model and serial number and we'll double-check it for you. You can also browse www.rvfridgeguys.com.
